title: Vermicomposting of toxic weed--Lantana camara biomass: chemical and microbial properties changes and assessment of toxicity of end product using seed bioassay.
abstract: This work illustrates the results of vermicomposting trials of noxious weed - Lantana camara (LL) leaf litter spiked with cow dung (CD) in different ratios (0%, 20%, 40%, 60% and 80%) using Eisenia fetida. A total of five treatments were established and changes in chemical and microbial properties of vermibeds have been observed for 60 days. In all treatments, a decrease in pH (19.5-30.7%), total organic carbon (TOC) (12-23%) and C:N ratio (25-35%), but increase in ash content (16-40%), total N(N(tot)) (11-32%), available phosphorous (P(avail)) (445-629%), exchangeable potassium (K(exch)) (63-156%) exchangeable calcium (Ca(exch)) (67-94%),and N-NO3(-) (164-499%) was recorded. Vermibeds with 40-60% LL (T2 and T3) showed better mineralization rate. The number of fungi, bacteria and actinomycetes showed 0.33-1.67-fold, 0.72-2.33-fold and 2.03-2.99-fold increase, respectively after vermicomposting process. The germination index (GI) was between 47% and 83% in all vermicomposts as indicated by seed bioassay test. Results thus suggested that Lantana may be a potential source for vermicompost production for sustainable agriculture.
authors.affiliation: School of Environment & Natural Resources, Doon University, Dehradun 248001, India. sutharss_soilbiology@yahoo.co.in
authors.forename: Surindra
authors.initials: S
authors.lastname: Suthar
authors.forename: Priyanka
authors.initials: P
authors.lastname: Sharma
mesh_terms: D000818:Animals; D001419:Bacteria; D001681:Biological Assay; D018533:Biomass; D002417:Cattle; D005260:Female; D005658:Fungi; D032410:Lantana; D008372:Manure; D009835:Oligochaeta; D012639:Seeds; D012987:Soil; D012988:Soil Microbiology; D014866:Waste Products
chemical_list: D008372:Manure; D012987:Soil; D014866:Waste Products
keywords: Allilopathic plants; Eisenia fetida; Plant litter; Vermicompost; Weed management